Richmond, Va. -- About concussions What is a concussion? A concussion is a mild form of traumatic brain injury caused by a bump, blow or jolt to the head. Concussions also can occur from a fall or a blow to the body that causes the head to move rapidly back and forth. Doctors may describe these injuries as mild because concussions are usually not life-threatening. Even so, their effects can be serious. Concussions are a common type of sports injury. National Library of Medicine, Centers for Disease Control and Prevention How common are concussions? Each year,...
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